Bu hizmet bedeli neden eklenmiş?

• Bu = this
• hizmet = service
• bedeli = fee / charge / price
• neden = why
• eklenmiş = has been added / was added

So the structure is literally something like:

This service fee why added?

Natural English: Why has this service fee been added?

Because hizmet bedeli is a very common Turkish noun compound meaning service fee / service charge.

In this kind of compound:

• the first noun stays plain: hizmet
• the second noun usually takes a possessive-type ending: bedel + i = bedeli

So:

• hizmet bedeli = service fee
• yol parası = travel money/fare
• okul kapısı = school gate

This is a normal Turkish pattern and does not necessarily mean literal possession in English.

That -i is part of the noun-compound structure.

The base word is bedel = cost / price / fee.
In hizmet bedeli, it becomes bedeli.

This is often called the third-person possessive ending in grammar books, but in compounds it is extremely common and often best understood simply as the standard way Turkish forms expressions like service fee, school door, city center, etc.

So here:

• bedel = fee
• hizmet bedeli = service fee

In Turkish, question words like:

• neden = why
• ne = what
• kim = who
• nerede = where

usually stay in the position of the information being asked about, often just before the verb.

So:

• Bu hizmet bedeli neden eklenmiş? = Why has this service fee been added?

Turkish does not usually move why to the front the way English does.
So even though English begins with Why, Turkish naturally keeps neden before the verb.

Eklenmiş comes from the verb eklemek = to add.

The form breaks down like this:

• ekle- = add
• -n- = passive marker here, giving eklen- = be added
• -miş = a past/perfect-type ending

So eklenmiş means:

• has been added
• was added
• sometimes apparently was added, depending on context

In this sentence, the most natural meaning is: Why has this service fee been added?

Because the sentence is passive.

• eklemiş = (someone) has added
• eklenmiş = (something) has been added

Here, the focus is on the fee, not on the person who added it.

So:

• Müşteri hizmet bedelini eklemiş.
  = The customer has added the service fee.
• Hizmet bedeli eklenmiş.
  = The service fee has been added.

This passive form is very common in bills, systems, notices, and customer-service language.

-miş is a very important Turkish ending. It can suggest things like:

• reported information
• inferred information
• a present-result meaning similar to has ...
• a softer or less direct tone in some contexts

In this sentence, it often feels like:

• Why has this service fee been added?
• or Why was this service fee added?

In real-life usage, especially in questions, -miş does not always strongly mean apparently. It can simply sound a bit less blunt or more observational than another past form.

Yes. That is also correct.

• neden eklenmiş?
• neden eklendi?

Both can mean Why was this service fee added?

A rough difference:

• eklendi = more straightforward simple past
• eklenmiş = often a little more like has been added, seems to have been added, or I see that it has been added

In many everyday situations, the difference is subtle and context decides the best translation.

Yes, but Turkish does not need to mention it here.

Because eklenmiş is passive, the sentence does not say who added the fee. That is either:

• unknown,
• unimportant,
• or intentionally left unstated.

English does the same thing:

• Why has this service fee been added?

We also do not say who added it unless we want to:

• Why has the company added this service fee?
• Why did the restaurant add this service fee?

Usually yes. Bu means this.

In context, it points to a specific fee the speaker can see, for example on:

• a bill
• a receipt
• an app screen
• an invoice

So bu hizmet bedeli is basically this service fee.

Depending on the situation, English might naturally translate it as this fee or just leave this implied:

• Why has this service fee been added?
• Why was this service charge added?

Yes. Common alternatives are:

• niçin
• niye

So you could also hear:

• Bu hizmet bedeli niçin eklenmiş?
• Bu hizmet bedeli niye eklenmiş?

All mean Why has this service fee been added?

A rough style note:

• neden = very common, neutral
• niçin = a bit more formal/bookish
• niye = very common in speech, a little more casual

A rough pronunciation is:

boo heez-MET be-DE-lee NE-den ek-LEN-mish

A few helpful points:

• u in bu is like oo
• hizmet has two clear syllables: hiz-met
• bedeli is be-de-li
• eklenmiş ends with -miş, pronounced roughly mish
• the ş sound is like sh

In speech, neden often gets noticeable stress because it is the question word: Bu hizmet bedeli NEDEN eklenmiş?

Yes, very natural.

It sounds like something someone might say when checking:

• a restaurant bill
• a bank statement
• a hotel invoice
• an online order total

It is polite and normal, especially when asking for an explanation about an extra charge. It does not sound overly aggressive, especially compared with a more direct complaint.